Hi Paul,
I personally never heard about this issue nor had customers experiencing it.
If you are able to find a way to repeat it, please report the bug and we'll fix it.
This is not the issue of upgrade SERP. But serverip.dat in this case contains the value: 192.168.88.12:1301, so this is local IP of the server with SERP.
Anyway I don't understand what do you me...
